| Effects of electropulsing on the microstructure and microhardness of a selective laser melted Ti6Al4V alloy | |
| Gao, J. B.1,2; Ben, D. D.2; Yang, H. J.2; Meng, L. X.2; Ji, H. B.2; Lian, D. L.2; Chen, J.3; Yi, J. L.3; Wang, L.3; Li, P.1; Zhang, Z. F.2 | |
| Corresponding Author | Yang, H. J.(hjyang@imr.ac.cn) ; Li, P.(pengli@ysu.edu.cn) |
| 2021-09-15 | |
| Source Publication | JOURNAL OF ALLOYS AND COMPOUNDS
 |
| ISSN | 0925-8388 |
| Volume | 875Pages:8 |
| Abstract | Optimizing the microstructure and mechanical properties of the selective laser melted (SLM) Ti6Al4V alloy is an important issue both in the scientific and engineering interests. In this study, the rapid hardening and softening of the SLM-Ti6Al4V alloy is realized due to the obvious evolution of microstructures during the electropulsing treatment (EPT) with different discharge voltages. The microhardness of the EPT-7.5 kV sample decreased about 7% while the EPT-8 kV sample increased about 10% compared with the as-received sample. Scanning electron microscopy (SEM), electron backscattered diffraction (EBSD) and transmission electron microscopy (TEM) analysis were used to characterize the evolutions of alpha and beta grains and dis-location structures which are corresponding with the microhardness changes induced by EPT. Analysis shows that EPT could reduce the thermodynamic barrier for alpha -> beta solid-state phase transformation, further arise microstructure refinement in the SLM-Ti6Al4V alloy. This research shed some new light on rapidly and efficiently improving the microstructure and mechanical properties of the additive manufactured metal components. (c) 2021 Elsevier B.V. All rights reserved. |
| Keyword | Selective laser melting Ti6Al4V alloy Electropulsing Microstructure Phase transformation |
| Funding Organization | National Natural Science Foundation of China ; COMAC Shanghai Aircraft Manufacturing Co., Ltd. ; Youth Innovation Promotion Association CAS ; Yanshan University Scientific Research Foundation for Advanced Talents ; Natural Science Foundation of Liao Ning ; Liao Ning Revitalization Talents Program |
| DOI | 10.1016/j.jallcom.2021.160044 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | National Natural Science Foundation of China[51975552] ; COMAC Shanghai Aircraft Manufacturing Co., Ltd.[COMACSFGS20182663] ; Youth Innovation Promotion Association CAS[2017235] ; Yanshan University Scientific Research Foundation for Advanced Talents ; Natural Science Foundation of Liao Ning[2020-MS-007] ; Liao Ning Revitalization Talents Program[XLYC1808027] |
| WOS Research Area | Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering |
| WOS Subject | Chemistry, Physical ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering |
| WOS ID | WOS:000657533000002 |
| Publisher | ELSEVIER SCIENCE SA |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/160355 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Yang, H. J.; Li, P. |
| Affiliation | 1.Yanshan Univ, Clean Nano Energy Ctr, State Key Lab Metastable Mat Sci & Technol, Qinhuangdao 066004, Hebei, Peoples R China 2.Chinese Acad Sci, Shi Changxu Innovat Ctr Adv Mat, Inst Met Res, Shenyang 110016, Peoples R China 3.COMAC Shanghai Aircraft Mfg Co Ltd, Shanghai 201324, Peoples R China |
| Recommended Citation GB/T 7714 | Gao, J. B.,Ben, D. D.,Yang, H. J.,et al. Effects of electropulsing on the microstructure and microhardness of a selective laser melted Ti6Al4V alloy[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2021,875:8. |
| APA | Gao, J. B..,Ben, D. D..,Yang, H. J..,Meng, L. X..,Ji, H. B..,...&Zhang, Z. F..(2021).Effects of electropulsing on the microstructure and microhardness of a selective laser melted Ti6Al4V alloy.JOURNAL OF ALLOYS AND COMPOUNDS,875,8. |
| MLA | Gao, J. B.,et al."Effects of electropulsing on the microstructure and microhardness of a selective laser melted Ti6Al4V alloy".JOURNAL OF ALLOYS AND COMPOUNDS 875(2021):8. |
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